Two-stroke-cycle internal-combustion engine.



0. RICHTER GL H. VOGEL. "TWO-STROKE CYCLE INTERNAL COMBU STION ENGINE.

APPLICATION FILED APR-21.1915- Patented Mar. 21, 1916.

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Bewitiknown that WQ, ;OSKAR.

RICHTER and i VOGEL, citizens of-the German Emi-refresiding at Kiel, Gerinany, have incertain new' and useful Improvefi wng he resent inventionrelates to an inn in two-strokewycle internnl comhalving pistoncontrolled .g ports for guiding the injected jg Y'air, -whichare 1 provided with inserted'zi-guide blades.

d inii the 'dra-wi'ng, the figure verticalllongitudinal section of e portion of an upright working he Working'cylinderand B the pisxh st portslby D. For'thelsake of. sim

ruide blades e l-$0 for guiding the scavg 'ngfair jpussagefnot; shown,'; are, in

known rnanner; "built into 'the scavenging The angles of departure dz a a? a ls, of itlie port 0, have now, in accordh the present invention,- been sosec g deflects the. scavenging. air almost a el to the cylinder well, while the lower down situated 1 guide blades "are so directed I v parting aircurrent, the expanoflkwvh chfincreasesin the cylinder on account ofyspraying, distributes itself in the remaining space of the. working; cylinder, the lowerrnost Inwthis" nn. fihl; P

[ mm completes avengin'g Specification of Letters Patent.

I n TworStroke-Cycle Internal Com-- y ngines' ofwwhich the following is a n odiment' f the present invention 53 two-stroke cycle internal coinbus ginea'one of the scnvenging ports, his jdenoted byfC and one of fiche licitflonly one o fl the scavenging ports and netio fqtliewexhaust ports has been shown.

ging-nir ntering from the annular scevuide, blades 11 h adjoining atith'y' increasefro n the top down- -ward m such a mannerthat the top guide orifice beingpositioned to diiairtacross the top of the [313- ylinder contents is assured, atipll for dead spaces prevented,

*- is s a IE- a VOGEL, or KIEL, esnnmrs.

rwosrnoKE-oYoL-n IETERNAL-CC MBUfiTION ENGILFEE.

PJziKiH'lZQi Mar. 2-1, 31316.

Application filed April 25., 1915. Serizil No. 22,308. 1

which could not be reached by the scavcnging air, and wherein the combustion gnscs whirl uselessiyns would, for instanccg-occnr in motors, w iere the angles of departure of alllthe guide blades-are of the same inngni tut e. v

any hitherto usual guiding projection. It 1s, of course, to be understood that the engine may be'provided with any desired number blades in said port, said blades being 5 constructed that each blade guides the en tering scavenging air at :1 difl erent angle as regards the side of the cylinder, said angles increasing from the cap end to the crank end of the cylinder.

2. In a working cycleinternal combustion engine having a piston controlled scavenging port, guide blades in"sziid port, the piston head being sli htly convex on its pressure side; said guide blades forming a plurality of intake orificesin said port, each of said orifices directing the scavenging ,air passing there 5 "through at a difi'erent angle, said angle; gradually decreasing from the piston when,

retracted, toward the cap end" of the cylin deiythe lowermost orifice directing scavlzng ing air acrosssaid convex side of the piston and the uppermost orifice directing scaveng ing air upwardly and approximately par-t allel to the sideof the cylinder,

cylindcrfoi' a two-stroke L In order to attain with certainty the tie sired action, the piston body is preferably made slightly convex on'top, butwithout In testimony whereof the foregoing! Speci. I

fication is signed in the presence of two wit JULI S Bod IKE,

Hn'co LIEBELT. 

